The truth is...

You don't have to be an expert on a particular subject to create quality content about that subject. The "big boys" usually tell you that you do just to keep you in the dark about how they really consistently create quality content.

It's not hard. In fact, you don't have to spend any of your time creating original content. Let's face it, if you're selling internet marketing information to other marketers you're going to struggle because there's just too much competition from people who have been at this a lot longer than you.